| A | B |
| compound | a substance made up of two or more different elements |
| molecule | the smallest particle, formed by covalent bonding, is, of a pure substance that has all the properties of that substance |
| pure substance | an element or compound |
| mixture | two or more substances that are not chemically combined but are only mixed together |
| ionic bond | bond formed between two atoms that have gained or lost electrons |
| ion | an atom that has a charge because it has gained or lost electrons |
| crystal lattice | ions arranged in a regular pattern |
| covalent bond | bond formed when atoms share electrons |
| organic chemistry | the study of organic compounds |
| organic compounds | compounds containing carbon |
| structural formula | molecular model of a compound |
| amino acids | compounds containing nitrogen that make up proteins |
| carbohydrates | sugars and starches used by the body for energy |
| lipids | fats and oils stored forms of energy |
| proteins | compounds needed to build and repair the body |
| sodium chloride | ionic compound |
| water | covalent compound |
| glucose, sucrose, potato starch | carbohydrates |
| beans, meat, fish | proteins |
| butter, vegetable oil, cream | lipids |